HBO has a documetary about Fred A Leuchter Jr.
Mr Death The Rise and Fall of Fred A Leuchter Jr.
He built execution devices for state prisons, electric chairs and gallows.
He was suppose to rebuild an electric chair for some prison,
The prison sent him the chair to his home.
They opened it in the front driveway, and assembled it in the basement.
Leuchter's Brother took several pictures of the chair
a faint outline of a hand draped over the armrest
and a clear image of a face under the chin strap.
@15:00 min